Lubricating device.



E. O. COX.

LUBRIGATING DEVICE.

' APPLICATION FILED FEB.27,1914,

1 09,402. Patented Sept. 1, 1914.

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" Specification of Letters Patent. P tented Sept, 1, 1914.

Application filed February 27, 1914. Serial Nd. 821,619.

To all whom it may concern: I

' Be it known that 1, ERNEST 0. Cox, a citizen of the United States, residing at Wetumka, infthe county of Hughes and State of Oklahoma, have invented certain new and useful Improvements in Lubricating Devices; and I do hereby declare the following to be a full clear, and exact description of the invention, such as will on able others skilled in the art to which it appertainsto make and use the same.

This invention relates tonew. and useful improvements in lubricatingdevices,and has for its principal object to provide a lubricator which is capable of use on stationary as well as portable engines and similar ma chinery. 7

Another object of this invention is to pro-"- vide a simple and effective lubricating device by means of which. a forced feed "oi the lubricantis obtained without the necessity of providing "any complicated combination of parts to obtain the desired results.

A further object of the5-invention. is to provide a device to which access may be easily and quickly'gained so that cleaning of the device maybe accomplished without unthis inconvenience A still further object of the inventionis to provide a novel lubricatingdevice which may :be used to lubricate a' plurality of bear ings simultaneously. Y I With the above and other objects in view .theinvention consists in the 'novel combination and arrangement of parts which will be fully set forth in the following specification and accompanying drawings, in which, Figure 1 is a longitudinal sectional view of Na lubrica'tor constructed in .accordance with this invention, Fig. 2 is a transverse sectional view taken on line 22 ofFig. 1, and showing a plurality of pumps arranged around the main lubricant reservoir in dotted lines.

Referring now'to the drawings bycharactors of reference, the numeral 1 designates generally the lubricant receiving chamber which comprises the cylindrical wall 2 hav-. ing formed at the lower end thereof the closure 3. Threaded on'the upper end of the cylindrical wall 2 is' provided the cap 4 having formed therein the centrally located aperture 5. A stem'6 is extended through the aperture 5 as clearly shown in ity with the hand hold Z, by means of which the operation of the stem may be cont-roiled.

At the end of the stem 6 opposite the hand hold 7 is provided the oil tight plun ger 8 which is slidable within the cylinder 2 and is arranged to force the oil out of the lower end of the cylinder as will be more fully hereinafter described.- Threaded into the cylindrical casing 2 and communicating with the interior thereof is provided the nipple 9 having secured to its free end ferred' construction. A similar nipple 11 is secured to the opposite terminalbf the valve and communicates with the interior of the air pump which will be more fully hereinafter described. r a

V The air pump above referred to; is designated generally by the numeral 12 and com rises 'the cylindrical casing 13 having of the cylindrical casing and isadapted' to form a closure therefor. A centrally located aperture 16 is formed'in the cap 15 and is arranged to receive the stem of the plunger which will be more fully hereinafter described. i The plunger above referred to comprises the head 17 which fits tightly within'the cylinder 13 and is slidable therein. This extends through the aperture 16 in the cap handleportion 19. as clearly own in Fig.1. The lower end of the casin 13 -is provided with an aperture in'whicli t e nipple 20- is secured which is adapted to provide a connection for the conductor tube 21; by means of whichlubricant is conveyed to the part upon which it is desired that the same shall beused. A suitable inwardly opening check valve 22 is located near the bottom of the the interior of the cylinder when the plunger -is drawn upward.

It is to be understood that in the foregoing description, a single pump is illuspumps may be attached to the reservoir 1 as shown in Fi 2, thus. roviding for the lubrication 0 several di erent bearings si-' multaneously. 1 a

It wili be evident from the foregoing that Fig; 1 and is provided at its upper extremthe manualiyoperable valve 10 ofahy pro.

trated, but if so desired, ta-plurality of- '15 ormedatiits lower end the closure 14. A 1 threaded cap 15, is secured to the upper end I head '17 is provided with the stem 18 which 15 and terminates. at Its up er end in the cylinder 13 and is arranged to admit-air to in use, the chamber 1 is filled with any suitable lubricant which is capable of flowing through the nipple 9 in the bottom there- 7 of. The valve 10 is then opened, and it will be evident that the desired amount of lubricant may be admitted to the pump 12. 'During the process of admitting the lubricant to the pump, it is essential that the piston in the pump be lowered so that the chamber therein will be relatively small. After closing the valvelO, the pump piston is raised and it will be apparent that the cylinder will fill. with'air throu h the means of the air valve 22 and upon orcing the plunger down the valve will automatically close and the lubricant within the chamber Will be forced through the nipple and into the conductor pipe 21 by which it is conveyed to the desired bearing.

While in the foregoing there has been shown and described the preferred embodiment of this invention, it isto be understood that such changes may be made in the combination and arrangement of parts as will fall within the, spirit and scope of the claims.

Having thus described my invention, I claim:

31- Ad" device of the character described comprising a lubricant receiving chamber, a plunger slidable in said lubricant receiving chamber, means to slide the plunger in the lubricant receiving chamber, a pump,'tubu-. lar means connecting the lower end of the pump with the lubricant receiving chamber, a piston slidable in the pump, an air valve near the lowerend of the pump, said air valve being adapted to admit air to the pump cylinder when the piston is being drawn upward, and a conveyer tube connected to the pump and adapted to carry the lubricant to the desired point.

2. A device of the character described comprising the combination with a cylinder adapted to receive lubricant, a piston slidable in the cylinder, a duct connected to the lower end of the cylinder, of a pump connected to the .end of the duct opposite the piston is being drawn away from the duct,

and means connected to the pump near the duct to carry the lubricant to the desired point.

I 3. A device of the character described comprising a cylindrical lubricant receiving chamber, a closure at one end of said chamber, a removable closure at the opposite end of said chamber, said removable closure being provided with a centrally located aperture, aplunger slidable within the lubricant receiving chamber, a stem on the plunger, said stem extending throu h the aperture in the removable closure, a hand hold at the free end of the stem, and a lubricant duct nearathe closed end of the lubricant receiving "chamber, .of a valve in the duct and adapted to close the. same, a pm atthe end ofthe duct opposite the lubricant receiving chamber, av piston slidable in the pump, a closure formed at the end of the pump,.a removable closure secured to the opposite end of the. pump, said removable closure .being provided with a centrally 10- cated aperture, a, piston slidable in the pump, a stem on the piston, said stem being adapted to extend through the aperture in the removable-closure, handle on the end ofthe'stem by means of which the device is operated, an air valve in the pump cylinder near the lubricant duct, and a conveyor tube communicating with the, interior of. the

pump and adapted to convey the lubricant to the desired point.

- In testimon whereof I .afiix my signature in presence 0 two witnesses' 

